/*
 * Copyright 2016 liufanping@iveely.com.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.iveely.computing.common;

import com.sun.management.OperatingSystemMXBean;

import java.lang.management.ManagementFactory;

/**
 * The situation of the service node.
 */
public class ServiceNode {

  /**
   * Get free memory of current service node.
   *
   * @return The free memory.
   */
  public static int getFreeMemory() {
    OperatingSystemMXBean osmb = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
    return (int) (osmb.getFreePhysicalMemorySize() / 1024 / 1024);
  }

  /**
   * Get current jar of runing.
   *
   * @return The jar path.
   */
  public static String getCurrentJar() {
    return ServiceNode.class.getProtectionDomain().getCodeSource().getLocation().toString();
  }
}
